Product Category
Liquid inlet and structure of cryogenic storage tank
Date: Feb 03, 2020
Cryogenic storage tank is a pressure vessel that we often use to store liquid oxygen, liquid argon, liquid nitrogen and other gases. The cryogenic pipeline of the storage tank is led out from the lower end of the tank body, which is convenient for operation and maintenance. Due to the different use environment of cryogenic storage tank, it is necessary to pay attention to relevant operation matters during use.
Generally, the cryogenic storage tank we use is divided into upper liquid inlet and lower liquid inlet. The liquid inlet is the pipe from the tank truck to the storage tank. The upper liquid inlet is usually used during the first precooling and the first liquid inlet; the liquid outlet is the process pipe that presses the liquid out of the storage tank. When the tank is 90% full, open the overflow valve. When the medium flows out, it can be proved that it has reached the designed filling line, and then the filling can be stopped.
As the storage and shipping equipment of special gas, the cryogenic storage tank shall be subject to gas replacement treatment before the first use, and the nitrogen shall be used to purge and replace the pipeline and the air in the tank.
The liquid filling structure at the top of cryogenic storage tank is designed with porous pouring structure, which can make the cryogenic liquid stable when it is filled into the content device. Some of the gas in the container can be absorbed and liquefied at cryogenic to maintain the relative stability of the gas phase pressure in the filling process.
What is the structure of cryogenic tank?
The support structure between the inner tank and the shell adopts the upper stainless steel strap and the lower stainless steel pipe support mode. Under the normal station position of the equipment, the gravity load of the inner tank and its storage medium is transmitted to the shell through three stainless steel pipes, and then to the shell legs and the equipment foundation to avoid additional eccentric moment load. The structure also guarantees the free contraction of the inner tank under the cryogenic working condition of the equipment.
Generally, the cryogenic storage tank we use is divided into upper liquid inlet and lower liquid inlet. The liquid inlet is the pipe from the tank truck to the storage tank. The upper liquid inlet is usually used during the first precooling and the first liquid inlet; the liquid outlet is the process pipe that presses the liquid out of the storage tank. When the tank is 90% full, open the overflow valve. When the medium flows out, it can be proved that it has reached the designed filling line, and then the filling can be stopped.
As the storage and shipping equipment of special gas, the cryogenic storage tank shall be subject to gas replacement treatment before the first use, and the nitrogen shall be used to purge and replace the pipeline and the air in the tank.
What is the structure of cryogenic tank?
The support structure between the inner tank and the shell adopts the upper stainless steel strap and the lower stainless steel pipe support mode. Under the normal station position of the equipment, the gravity load of the inner tank and its storage medium is transmitted to the shell through three stainless steel pipes, and then to the shell legs and the equipment foundation to avoid additional eccentric moment load. The structure also guarantees the free contraction of the inner tank under the cryogenic working condition of the equipment.
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